12054805 has 8 divisors (see below), whose sum is σ = 16532352. Its totient is φ = 8266128.

The previous prime is 12054803. The next prime is 12054839. The reversal of 12054805 is 50845021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12054805 - 2¹ = 12054803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12054805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172177 + ... + 172246.

It is an arithmetic number, because the mean of its divisors is an integer number (2066544).

Almost surely, 2^12054805 is an apocalyptic number.

It is an amenable number.

12054805 is a deficient number, since it is larger than the sum of its proper divisors (4477547).

12054805 is an equidigital number, since it uses as much as digits as its factorization.

12054805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344435.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 12054805 is about 3472.0030241922. The cubic root of 12054805 is about 229.2908529479.

Adding to 12054805 its reverse (50845021), we get a palindrome (62899826).

The spelling of 12054805 in words is "twelve million, fifty-four thousand, eight hundred five".